LCM for 15 and 64

What's the Least Common Multiple (LCM) of 15 and 64?

Answer: LCM of 15 and 64 is 960

(Nine hundred sixty)

Finding LCM for 15 and 64 using GCF's of these numbers

The first method to find LCM for numbers 15 and 64 is to find Greatest Common Factor (GCF) of these numbers. Here's the formula:

LCM = (Number1 × Number2) ÷ GCF

GCF of numbers 15 and 64 is 1, so

LCM = (15 × 64) ÷ 1

LCM = 960 ÷ 1

LCM = 960

Finding LCM for 15 and 64 by Listing Multiples

The second method to find LCM for numbers 15 and 64 is to list out the common multiples for both nubmers and pick the first which matching:

Multiples of 15: 15, 30, 45, 60, 75, 90, 105, 120, 135, 150, 165, 180, 195, 210, 225, 240, 255, 270, 285, 300, 315, 330, 345, 360, 375, 390, 405, 420, 435, 450, 465, 480, 495, 510, 525, 540, 555, 570, 585, 600, 615, 630, 645, 660, 675, 690, 705, 720, 735, 750, 765, 780, 795, 810, 825, 840, 855, 870, 885, 900, 915, 930, 945, 960, 975, 990

Multiples of 64: 64, 128, 192, 256, 320, 384, 448, 512, 576, 640, 704, 768, 832, 896, 960, 1024, 1088

So the LCM for 15 and 64 is 960

Finding LCM for 15 and 64 by Prime Factorization

Another method to find LCM for numbers 15 and 64 is to list all Prime Factors for both numbers and multiply the highest exponent prime factors:

All Prime Factors of 15: 3, 5 (exponent form: 31, 51)

All Prime Factors of 64: 2, 2, 2, 2, 2, 2 (exponent form: 26)

31 × 51 × 26 = 960

LCM Table

Number 1Number 2LCM
16464
26464
364192
46464
564320
664
764448
86464
964
1064320
1164704
1264192
1364832
1464448
1564
1664
17641088
1864576
19641216
2064320
21641344
2264704
23641472
2464192
25641600
2664832
2764
2864
29641856
3064960

About "Least Common Multiple" Calculator

This calculator will help you find the Least Common Multiple (LCM) of two numbers. For example, it can help you find out what's the Least Common Multiple (LCM) of 15 and 64? (The answer is: 960). Select the first number (e.g. '15') and the second number (e.g. '64'). After that hit the 'Calculate' button.
Least Common Multiple (LCM) also known as the Lowest Common Multiple or Smallest Common Multiple of 2 numbers - it is the smallest positive integer that is divisible by both numbers

FAQ

What's the Least Common Multiple (LCM) of 15 and 64?

LCM of 15 and 64 is 960